Timer



nls. HAYNES.

. Patented May 16, 1922.

WITNESSES UNiTED STATES PATENT ()FFlCEi DAVIDSON HAYNES, OF l lVI lhlE-TVILLLE, INDIANA.

TIMER.

Application filed April 2,

To (cZZ whom it mug concern Be itlmown that L liuivinson' iii. ll Y1: ns a citizen of the i nited iiitatcs, and resident of Evansville county of \TZLIM iurg, State oi lndiana, hare invented certain new and useful improvements in a Timer, of which the 'l'followinp; is aspecification. V

it is well appreciated that timers now upon the market have one inherent detect in that in both sliding and rolling contact timers the friction between the various parts renders a renewal of the same imperative after the power plant with which they are associated has been operated tor a certain length of time.

another detect, particularly noticeable in connection with the timer utilized on automotive vehicles of the Ford type has been that certain of the wires leading from such timer are liable to come in with moving; parts of the power plant, resulting in a stripping in the insulation from such wires and a subsequent detectin the operation oi the power plant.

lVith view of avoiding the tirst-nuiucd detect constructions have been primosed embodying a circuit making and breaking means not relying upon a sliding; or roliin' contact, but these timers have proven incite cient in that it has been diihcult and consequently expensive to iuanutzu-ture the parts of which the same are comprised and parti'cularly to assemble such parts to term a complete unit.

lVith a view (it overcoming; these dii'liculties I have constructed a timer which shall embody circuit making and breaking parts not relying on a sliding or rolling contact, which parts shall be extremely simple in construction and permit of great ease in assemblying.

A further objectof my invention is the construction of ti or avoiding; the ditiiculty heretofore experienced in that the various lead wires running from the same are so disposed that certain of them are liable to come in contact with moving parts of the power plant.

A still further object of my invention is the construction of a timer of the Ford type which will permit the use of: a smaller cam, thus reducing the wear on the surface of the cam and the parts contacting with the same.

Further objects oi my invention will become apparent upon reference to the enclosed specification and drawings which latter rep- Flpecifica tion of lie 19120. Serial No. 3T0,'?tl0.

resent one ru'actical embodiment oi mv invcutioin and in which V Figure l. is a clan view, partly in section, of a timer constructed in accordance with my invention; Figure 2. is side view thereof, Figure 3. is a sectional view therethrough. ant Figures el. and 5. are perspec ive and enlarn'cd sectional views oi cert 'n deta'ls 0t constriurrion employed by myselt in forming the timer. k

all of these views like reference nu n'ierals designate similar parts and the retcrenre numeral 10 indicates the cap of a timer tr med with a flange l0 and from which project lead wires as at 11, which lead wires it will. be noted extend through only a short portion of the body of the timer thus eliminating the ditlicult i heretofore experh encod and brought out in the preamble where the tour lead wires are merged approximat- 90 apart. By this construction it will 2e possible to have all ot the lead wires ll passing through the walls oi? the cap 10 t a point rizimote From the moving parts of the power plant, and the same mav suhsequm ly be united by i'i'ieans oi an iiisulatod tubing: l2 :0 present a compact unit at all times.

Extendi 11;; parallel to the side walls of the cap 10 and within the same may be an annular llanp e such as 13F which ear-out to its point of connection'witlrithe inner faceoit the cap 10 is formed with a groove ll tor a purpose hereinafter more fully specified.

An assembly ring M is formed with an annular flange 16 adjacent one of its edges and is provided with split portion 17 Aid iacent to both the outer edges of the said ring" 15 the same is formed with inwardly extending; flanges 18 between which extend shafts 19 corresponding in number to the number of leads employed. Each of the shafts 19 ii'ockingly mounts a yoke-like mem ber 20, one arm of which is formed with a contact surface 21 in a line with a contact point 22 formed by a conventional lead terminal projecting through the ring 15. A spring; 23 of any desired construction cooperates with the yoke members 22 and serves to firmly cause the contact surface 21 thereof to be pressed into engagement with the contact point 22 formed by the terminal.

The arm opposite to the arm carrying the contact surface 21 of the yoke-like members extends inwardly as has been clea l' shown in Figure l. and presses against the outer surface of a eoi'rventional can] 24: and it will be noted that upon a rotation ol. the latter that the yoke-like members will be permitted to rock around their shafts 19 by virtue of the sprii'igs 2 and, contact surface it will be brought succes; fully to bear against the contact points (Tl the teriuinails 22 it is to he noted that an suitable type oi current conducting members. such as wires 25 are used. to connect the terminals 22 with the lead wires 11 in that one of the ends oi each of the wires is attached to the :torinen its opposite end being connected to the latter.

it will be well appreciated. that it will be an extremely simple matter to asseinhle the yoke-like members 20 upon their shatts 19 within the ring 15 when the same is er:- traneous of the cap 10.

Subsequent to such. assemblage the ring; 15 contracted, this being peri'nitted by the split portion 17, thereof, and the ring is inserted, into the cap 10 until. the 'tlangi'e 1.43 is adjacent the groove '14: ot the cap at which point the rin is permitted to extend so that the flange 1(5 thereoi enters the groove and the outer face of such ring lies this against the inner face oi? the flange 13.

Now with a View of retaining the ring 15 immovable with respect to the cap 10, one ol? the flanges 18 h as its end i. e. the portions adjzment the split part 17 llared. outwardly with respect to one another, as has been indica ted at 26, and a screw can now be inserted between the ends ot such flange and in an opening formed in the cap 10, the 'tlared head of such screw bearing against the out turned ends of such flange and upon being tightened against the same will expand the ring 15 against the inner face of the flange i3 and. thus render the sanieinnnovablc with respect thereto.

From the foregoing it willbe apprec 7 that I have constructed a ti nen the lei wires which will not i way interfere with the moving parts the power plant with which the same is a Further, timer is constructel w have none of the inherent defects of a sliding 4, cmitact timer and which will, permit an assemblage o'i' the parts with great ease.

(llJVlOUSljf. iuunermis inodil'ications of structure might be resorted to without de' parting 'lroni the scope o'lf iny claims which are- :l: claim:

'1. It tuner including a cap, a ring within said cap imvariilly extending flanges i fii'llb inn a part olf' said ring 'oltes rockingly mounted. between said flanges contact surfaces upon one oi the arms ot said yol-zies lead i'jerininals ilorn'iing Contact points in line with the contact surfaces of said yoke arms and. means for rocking such yoke arms.

2. A timer including a cap an annular flange within said cap and :l orminn a part of the same, the inner :Iiace of such flange being "formed with an annular groove adjacent its point oi? connection with the cap. a ring formed with an outwardly extending flan adjacent one of its edges and inwardly extendin flanges adjacent both ot the same, shafts extending between such inwardly extending; flanges, yokes rorltingly mounted upon such. shafts, one ot the arms o'li each of said. yohes being formed with a contact surface, lead terminals projectingthrough said ring; and terminating in contact points in line with such surfaces, springs associated. witheach of said yokes tending to normally cause contact between such surfaces and points, means tor opening and closing; such cmihicts said ring: being adapted to bear against the inner face ot the cap tlaug e the outu'ardl' extending; flange ol? such riun seating within said aiiinular groove.

3. A timer includii'ig a cap formed with an. annular flange, such cap being provided with an annular groove adjacent its point of connection with the cap, a ring formed with an outwardl extending flange adjacent one ot its edges, such ring; being; split and carrying; circuit melting and breaking; means, said ring being adapted to be positioned within said cap a d have its flange extending into said -nc groore a means cennectec to said can for extendi "such ring and toreing the outer face of the sanie inst the inner face of the annular groove 1 fian e.

DAVIDSON HAi rlES. 

